Air conditioner heat exchanger and air conditioner

Abstract

The utility model discloses an air conditioner heat exchanger and an air conditioner, relates to the technical field of air conditioners, and aims to solve the problem of low heat exchange efficiency of evaporators in related technologies. The air conditioner comprises an air conditioner heat exchanger, the air conditioner heat exchanger comprises a refrigerant flowing channel, and the refrigerant flowing channel comprises a first heat exchange channel, a first gas-liquid separator, a second heat exchange channel and a first exhaust channel. The first heat exchange channel is connected with the second heat exchange channel through a first gas-liquid separator, and the first gas-liquid separator is connected with the refrigerant outlet through a first exhaust channel. Through the first gas-liquid separator, the liquid refrigerant and the gaseous refrigerant are separated at the first gas-liquid separator, and the gaseous refrigerant is exhausted through the first exhaust channel. In this way, the proportion of the gaseous refrigerant accounting for the total refrigerant amount in the second heat exchanger is reduced, the proportion of the liquid refrigerant accounting for the total refrigerant amount in the second heat exchanger is increased, the liquid refrigerant makes full contact with the pipe wall of the second heat exchange pipeline, and the heat exchange efficiency of the refrigerant is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioning heat exchanger and an air conditioner. Background Art

[0002] An air conditioner is a device used to adjust indoor temperature and humidity. An air conditioner is an air conditioner that uses artificial means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in a building or structure.

[0003] In the related art, an air conditioner includes a compressor, a condenser and an evaporator. The compressor, the condenser and the evaporator are connected to form a refrigerant circulation loop, wherein the liquid refrigerant absorbs heat from the surrounding air in the evaporator and evaporates to become a gas.

[0004] However, in the related art, the liquid refrigerant cannot be fully evaporated in the evaporator, resulting in low heat exchange efficiency of the evaporator. Utility Model Content

[0005] The embodiments of the utility model provide an air-conditioning heat exchanger and an air-conditioner, which solve the problem of low heat exchange efficiency of the evaporator in the related art.

[0006] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0007] In the first aspect, the present application provides an air conditioning heat exchanger, comprising a refrigerant inlet and a refrigerant outlet, and a refrigerant flow channel is formed between the refrigerant inlet and the refrigerant outlet. The refrigerant flow channel comprises a first heat exchange channel, a first gas-liquid separator, a second heat exchange channel and a first exhaust channel. Among them, one end of the first heat exchange channel is connected to the refrigerant inlet, the first gas-liquid separator has a first inlet end, a first liquid outlet end and a first gas outlet end, the first inlet end is connected to an end of the first heat exchange channel away from the refrigerant inlet, the second heat exchange channel is connected to the first liquid outlet end and the refrigerant outlet, and the first exhaust channel is connected to the first gas outlet end and the refrigerant outlet. The first exhaust channel is used to guide the gas in the first gas-liquid separator to the refrigerant outlet.

[0008] In the process of flowing through the first heat exchange channel, part of the liquid refrigerant is converted into gaseous refrigerant. This part of the gaseous refrigerant cannot continue to absorb heat in the second heat exchange channel, and it will also cause the liquid refrigerant to be unable to fully contact the inner wall of the heat exchange channel, resulting in low heat exchange efficiency. In this application, the liquid refrigerant and the gaseous refrigerant are separated at the first gas-liquid separator through the first gas outlet end, and the gaseous refrigerant flows into the first exhaust channel through the first gas outlet end and is discharged through the first exhaust channel. The liquid refrigerant flows into the second heat exchange channel through the first liquid outlet end and continues to exchange heat. In this way, the proportion of the gaseous refrigerant in the total amount of refrigerant in the second heat exchanger can be reduced, the proportion of the liquid refrigerant in the total amount of refrigerant in the second heat exchanger can be increased, and the liquid refrigerant can fully contact the pipe wall of the second heat exchange pipeline, thereby improving the heat exchange efficiency of the refrigerant.

[0009] In some embodiments, the first heat exchange channel includes a plurality of first heat exchange branches, which are arranged in parallel, wherein one end of the first heat exchange branch is connected to the refrigerant inlet, and one end of the first heat exchange branch away from the refrigerant inlet is connected to the inlet end.

[0010] In some embodiments, the air conditioner further comprises a distributor having an inlet and a plurality of refrigerant outlets, wherein the inlet is connected to the refrigerant inlet, and one of the refrigerant outlets is connected to the inlet end through a first heat exchange branch.

[0011] In some embodiments, the second heat exchange channel includes multiple second heat exchange branches, which are arranged in parallel, wherein one end of the second heat exchange branch is connected to the refrigerant outlet, and the end of the second heat exchange branch away from the refrigerant outlet is connected to the first liquid outlet.

[0012] In some embodiments, the number of the second heat exchange branches is less than the number of the first heat exchange branches.

[0013] In some embodiments, the refrigerant flow channel further includes: a second gas-liquid separator, a third heat exchange channel, and a second exhaust channel. The second gas-liquid separator has a second inlet end, a second liquid outlet end, and a second gas outlet end. The second inlet end is connected to an end of the second heat exchange channel away from the first liquid outlet end, the third heat exchange channel is connected to the second liquid outlet end and the refrigerant outlet, and the second exhaust channel is connected to the second gas outlet end and the refrigerant outlet. The second exhaust channel is used to guide the gas in the second gas-liquid separator to the refrigerant outlet.

[0014] In some embodiments, the third heat exchange channel includes a plurality of third heat exchange branches, which are arranged in parallel, wherein one end of the third heat exchange branch is connected to the refrigerant outlet, and one end of the third heat exchange branch away from the refrigerant outlet is connected to the second liquid outlet.

[0015] In some embodiments, the number of the third heat exchange branches is less than the number of the second heat exchange branches.

[0016] In some embodiments, a gas collector is further included, and the gas collector has an exhaust port, a first gas collecting port, a second gas collecting port, and a third gas collecting port. The exhaust port is connected to the refrigerant outlet; the first gas collecting port is connected to an end of the first exhaust channel away from the first gas outlet; the second gas collecting port is connected to an end of the second exhaust channel away from the second gas outlet; and the third gas collecting port is connected to an end of the third heat exchange channel away from the second liquid outlet.

[0017] In a second aspect, an air conditioner is provided, comprising an outdoor unit and an indoor unit, the outdoor unit comprising a compressor, an outdoor heat exchanger and an outdoor fan, the indoor unit comprising an indoor heat exchanger and an indoor fan, the compressor, the indoor heat exchanger and the outdoor heat exchanger are connected in sequence through pipelines to form a refrigerant circulation loop, wherein at least one of the indoor heat exchanger and the outdoor heat exchanger is the air conditioner heat exchanger of the first aspect and any possible embodiment thereof.

[0018] The beneficial effects of the air conditioning system provided in the above second aspect are the same as the beneficial effects of the air conditioner provided in the above first aspect, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an air conditioner provided in an embodiment of the present application;

[0020] Figure 2 One of the structural schematic diagrams of an air-conditioning heat exchanger provided in an embodiment of the present application;

[0021] Figure 3 A second structural schematic diagram of an air-conditioning heat exchanger provided in an embodiment of the present application;

[0022] Figure 4 A third structural schematic diagram of an air-conditioning heat exchanger provided in an embodiment of the present application;

[0023] Figure 5 A fourth structural schematic diagram of an air-conditioning heat exchanger provided in an embodiment of the present application;

[0024] Figure 6 A fifth structural diagram of an air-conditioning heat exchanger provided in an embodiment of the present application;

[0025] Figure 7 One of the structural schematic diagrams of a gas-liquid separator provided in an embodiment of the present application;

[0026] Figure 8 A second structural schematic diagram of a gas-liquid separator provided in an embodiment of the present application;

[0027] Fig. 9 A sixth structural diagram of an air conditioning heat exchanger provided in an embodiment of the present application;

[0028] Fig.10 A seventh structural diagram of an air-conditioning heat exchanger provided in an embodiment of the present application;

[0029] Fig.11 A schematic structural diagram of a gas collector provided in an embodiment of the present application.

[0030] Reference numerals:

[0031] 100-air conditioner;

[0032] 10-indoor unit; 11-indoor heat exchanger; 12-indoor fan; 20-outdoor unit; 21-compressor; 211-air inlet; 212-liquid outlet; 22-outdoor heat exchanger; 23-outdoor fan;

[0033] 200-air conditioning heat exchanger; 203-refrigerant flow channel;

[0034] 1. Refrigerant import;

[0035] 2- Refrigerant outlet;

[0036] 3-first heat exchange channel; 301-first heat exchange branch;

[0037] 4-second heat exchange channel; 401-second heat exchange branch;

[0038] 5-first gas-liquid separator; 501-first inlet end; 502-first liquid outlet end; 503-first gas outlet end; 504-first exhaust channel;

[0039] 6-third heat exchange channel; 601-third heat exchange branch;

[0040] 7-second gas-liquid separator; 701-second inlet end; 702-second liquid outlet end; 703-second gas outlet end; 704-second exhaust channel;

[0041] 8-distributor; 801-inlet; 802-diversion port;

[0042] 9-gas collector; 901-exhaust port; 902-first gas collecting port; 903-second gas collecting port; 904-third gas collecting port. DETAILED DESCRIPTION

[0043] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0044] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0046] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0047] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0048] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0049] An air conditioner is a device used to regulate indoor temperature and humidity. It is usually composed of an indoor heat exchanger, an outdoor heat exchanger, a throttling device and a compressor. The refrigerant is filled in the indoor heat exchanger, the outdoor heat exchanger, the compressor and the pipelines. The refrigerant carries heat and flows between the indoor heat exchanger, the outdoor heat exchanger and the compressor to achieve the purpose of regulating the indoor temperature.

[0050] The air conditioner can have both heating and cooling functions.

[0051] In cooling mode, the refrigerant flows out of the compressor, passes through the outdoor heat exchanger, the throttling device, and the indoor heat exchanger in sequence, and then flows back to the compressor. The refrigerant flowing out of the compressor is a high-temperature and high-pressure gas. The refrigerant condenses in the outdoor heat exchanger and releases heat. After releasing the heat, the temperature of the refrigerant decreases and it becomes a low-temperature and high-pressure gas. It then passes through the throttling device and becomes a low-temperature and low-pressure gas-liquid coexistence state, flows into the indoor heat exchanger, evaporates at the indoor heat exchanger, absorbs heat, and thus reduces the indoor temperature. The refrigerant becomes a low-temperature and low-pressure gas, and then flows back to the compressor for the next cycle.

[0052] In the heating mode, the refrigerant flows out of the compressor, passes through the indoor heat exchanger and the outdoor heat exchanger in turn, and then flows back to the compressor. The refrigerant flows out of the compressor and flows into the indoor heat exchanger, condenses at the indoor heat exchanger, releases heat, and thus increases the indoor temperature. After releasing heat, the temperature of the refrigerant decreases and flows into the outdoor heat exchanger, evaporates at the outdoor heat exchanger, absorbs heat, and finally the refrigerant flows back to the compressor for the next cycle.

[0053] In both heating and cooling modes, the refrigerant has an evaporation process. During the evaporation process, the liquid refrigerant absorbs heat from the surrounding air, causing the temperature to rise and the refrigerant to change from liquid to gas. When the refrigerant changes to gas, it no longer has the ability to absorb heat from the surrounding air and needs to be condensed before it can be used to absorb heat again.

[0054] In order to reduce the liquid hammer problem caused by liquid refrigerant entering the compressor, the liquid refrigerant needs to be converted into gaseous refrigerant as much as possible at the evaporator to reduce the amount of liquid refrigerant flowing into the compressor. To reduce the liquid hammer problem, the heat exchange channel is set as long as possible so that the refrigerant can be completely converted into gaseous refrigerant in the heat exchange channel.

[0055] However, if the heat exchange channel is set too long, the refrigerant will be converted into gaseous refrigerant in the front part of the heat exchange channel, causing the remaining part of the heat exchange channel to be in an invalid state, resulting in low heat exchange efficiency.

[0056] In order to solve the above problems, the present application provides an air conditioning system.

[0057] like Figure 1 As shown, Figure 1 A schematic diagram of the structure of an air conditioner provided in an embodiment of the present application.

[0058] The air conditioner 100 includes an indoor unit 10, and the indoor unit 10 is used to exchange heat with indoor air to change the indoor temperature.

[0059] The indoor unit 10 includes an indoor heat exchanger 11, and the indoor heat exchanger 11 is used to exchange heat with indoor air.

[0060] The indoor unit 10 includes an indoor fan 12, which is used to make air pass through the indoor heat exchanger 11. The indoor fan 12 also has the function of circulating indoor air and promoting air circulation.

[0061] The air conditioner 100 includes an outdoor unit 20, which is used to exchange heat with outdoor air, and the outdoor unit 20 is connected to the indoor unit 10 through a pipeline.

[0062] The outdoor unit 20 also includes a compressor 21, which is used to compress the refrigerant and provide power for the flow of the refrigerant. The compressor 21 can adjust the flow of the refrigerant under the control of the user.

[0063] The compressor includes an air inlet 211 and a liquid outlet 212 . The air inlet 211 is used to inhale gaseous refrigerant, and the liquid outlet 212 is used to discharge liquid refrigerant.

[0064] The outdoor unit 20 further includes an outdoor heat exchanger 22, which is used to exchange heat with outdoor air.

[0065] The outdoor unit 20 also includes an outdoor fan 23, which is used to make air pass through the outdoor heat exchanger 22. At the same time, the outdoor fan also has the functions of heat dissipation, exhaust, promoting heat exchange between the outdoor heat exchanger 22 and the outdoor air, and noise reduction.

[0066] like Figure 1 and Figure 2 As shown, Figure 2 This is one of the structural schematic diagrams of an air conditioning heat exchanger provided in an embodiment of the present application. One of the indoor heat exchanger and the outdoor heat exchanger is an air conditioning heat exchanger 200 .

[0067] Exemplarily, in cooling mode, the indoor heat exchanger 11 is an air conditioner heat exchanger 200 and the outdoor heat exchanger 22 is a condenser. In heating mode, the indoor heat exchanger 11 is a condenser and the outdoor heat exchanger 22 is an air conditioner heat exchanger 200.

[0068] This application will be further explained by taking the indoor unit heat exchanger 11 as the air-conditioning heat exchanger 200 as an example. Those skilled in the art can deduce the beneficial effects of the outdoor heat exchanger 22 being the air-conditioning heat exchanger 200 in the heating mode based on the example of the indoor unit heat exchanger 11 being the air-conditioning heat exchanger 200.

[0069] Continue to see Figure 2, the present application provides an air conditioning heat exchanger 200 .

[0070] Exemplarily, the air conditioner heat exchanger 200 may be one of a window air conditioner, a central air conditioner, a portable air conditioner, a multi-unit air conditioner, an embedded air conditioner, a ceiling air conditioner, and an air duct air conditioner. The present application does not specifically limit the type of the air conditioner heat exchanger 200.

[0071] The present application provides an air conditioning heat exchanger 200 disposed in a housing, and the housing has a protective effect on the air conditioning heat exchanger 200, reducing the air conditioning heat exchanger 200 from external damage. The air conditioning heat exchanger 200 is used to exchange heat with air.

[0072] Continue to see Figure 2 In some embodiments, the air conditioning heat exchanger 200 has a refrigerant inlet 1 and a refrigerant outlet 2, and the air conditioning heat exchanger 200 further includes a refrigerant flow channel 203, one end of the refrigerant flow channel 203 is the refrigerant inlet 1, and the other end is the refrigerant outlet 2. The refrigerant can flow into the refrigerant flow channel 203 from the refrigerant inlet 1, and flow out of the refrigerant flow channel 203 from the refrigerant outlet 2.

[0073] The refrigerant flow channel 203 includes a first heat exchange channel 3. One end of the first heat exchange channel 3 is connected to the refrigerant inlet 1, and the refrigerant can flow into the first air conditioning heat exchanger 200 from the refrigerant inlet 1. The refrigerant can exchange heat with the air in the first heat exchange channel 3.

[0074] The refrigerant flow channel 203 further includes a second heat exchange channel 4. The refrigerant can exchange heat with the air in the second heat exchange channel 4. The second heat exchange channel 4 is communicated with the first heat exchange channel 3 and is communicated with the refrigerant outlet 2.

[0075] The second heat exchange channel 4 and the first heat exchange channel 3 are arranged in series, so that the proportion of the refrigerant converted into gaseous refrigerant in the heat exchange channel can be increased, and the liquid refrigerant flowing back to the compressor 21 can be reduced (see Figure 1 ) ratio, thereby reducing the risk of liquid hammer in the compressor 21 and increasing the service life of the compressor 21.

[0076] Continue to see Figure 2 , the refrigerant flow channel 203 also includes a first gas-liquid separator 5. The first gas-liquid separator 5 has a first inlet end 501, a first liquid outlet end 502 and a first gas outlet end 503. Among them, the first inlet end 501 is connected to the end of the first heat exchange channel 3 away from the refrigerant inlet 1, the first liquid outlet end 502 is connected to the second heat exchange channel 4, and the first gas outlet end 503 is connected to the refrigerant outlet 2. The first gas-liquid separator 5 is used to separate the liquid refrigerant and the gaseous refrigerant. The refrigerant enters the first gas-liquid separator 5 through the first inlet end 501, the gaseous refrigerant flows out through the first gas outlet end 503, and the liquid refrigerant flows out through the first liquid outlet end 502. Thereby, the refrigerant is processed in different states.

[0077] The refrigerant flow channel 203 further includes a first exhaust channel 504. One end of the first exhaust channel 504 is connected to the first gas outlet 503, and the other end is connected to the refrigerant outlet 2. In this way, the gaseous refrigerant is discharged from the first gas outlet 503 to the refrigerant outlet 2 through the refrigerant flow channel 203.

[0078] Through the above arrangement, when the refrigerant flows to the air conditioner heat exchanger 200, the proportion of liquid refrigerant in the total amount of refrigerant is relatively high, so the heat exchange efficiency is relatively high. The refrigerant enters the first heat exchange channel 3 through the refrigerant inlet 1, and exchanges heat with the air in the first heat exchange channel 3. Specifically, the liquid refrigerant absorbs heat and evaporates into a gaseous refrigerant. At this time, it is a gas-liquid coexistence state. In the direction away from the refrigerant inlet 1, the refrigerant continues to exchange heat during the flow process, and the proportion of liquid refrigerant in the total amount of refrigerant gradually decreases, and the proportion of gaseous refrigerant in the total amount of refrigerant gradually increases.

[0079] The refrigerant in the gas-liquid coexistence state enters the first gas-liquid separator 5 through the first inlet port 501, the liquid refrigerant and the gaseous refrigerant are separated at the first gas-liquid separator 5, the liquid refrigerant flows into the second heat exchange channel 4 through the first liquid outlet port 502, and continues to exchange heat at the second heat exchange channel 4. The gaseous refrigerant flows into the first exhaust channel 504 through the first gas outlet port 503, and the first exhaust channel 504 discharges the gaseous refrigerant to the refrigerant outlet 2, thereby being discharged from the air conditioning heat exchanger 200.

[0080] This reduces the proportion of the gaseous refrigerant in the second air-conditioning heat exchanger 200 to the total amount of refrigerant, increases the proportion of the liquid refrigerant in the second air-conditioning heat exchanger 200 to the total amount of refrigerant, and thus improves the heat exchange efficiency of the refrigerant in the second air-conditioning heat exchanger 200.

[0081] like Figure 3 As shown, Figure 3 This is a second structural schematic diagram of an air-conditioning heat exchanger provided in an embodiment of the present application.

[0082] In some embodiments, the first heat exchange channel 3 includes a plurality of first heat exchange branches 301, and the plurality of first heat exchange branches 301 are arranged in parallel. One end of the first heat exchange branch 301 is connected to the refrigerant inlet 1, and the end of the first heat exchange branch 301 away from the refrigerant inlet 1 is connected to the inlet end.

[0083] Continue to see Figure 3 Two first heat exchange branches 301 are provided, and the two first heat exchange branches 301 are arranged in parallel. One end of each first heat exchange branch 301 is connected to the refrigerant inlet 1, and the other end of each first heat exchange branch 301 is connected to the first gas-liquid separator 5.

[0084] Two first heat exchange branches 301 are provided. When the refrigerant enters the first heat exchange channel 3, it is divided into two streams, one of which enters the first heat exchange branch 301A, and the other enters the first heat exchange branch 301B. When the refrigerant flow rate and flow velocity remain unchanged, the refrigerant enters different first heat exchange branches 301 for heat exchange, and heat exchange can be performed at two locations at the same time, thereby increasing the heat exchange efficiency.

[0085] like Figure 4 As shown, Figure 4 The third structural schematic diagram of an air-conditioning heat exchanger provided in an embodiment of the present application.

[0086] Three first heat exchange branches 301 are provided, and the three first heat exchange branches 301 are arranged in parallel. One end of each first heat exchange branch 301 is connected to the refrigerant inlet 1 , and the other end of each first heat exchange branch 301 is connected to the first gas-liquid separator 5 .

[0087] Three first heat exchange branches 301 are provided. When the refrigerant enters the first heat exchange channel 3, it is divided into three streams, one of which enters the first heat exchange branch 301A, another enters the first heat exchange branch 301B, and another enters the first heat exchange branch 301C. When the refrigerant flow rate and flow velocity remain unchanged, the refrigerant enters different first heat exchange branches 301 for heat exchange, and heat exchange can be performed at three locations at the same time, thereby increasing the heat exchange efficiency.

[0088] Exemplarily, four or more first heat exchange branches 301 may be provided.

[0089] Combination Figure 1 , Figure 2 and Figure 3 The refrigerant exchanges heat in different first heat exchange branches 301. According to the different settings of the first heat exchange branches 301, heat exchange can be performed at multiple locations at the same time, so that the cooling caused by the refrigerant absorbing heat is uniform, and the temperature of the wind blown out by the air-conditioning heat exchanger 200 is appropriate, thereby improving the user's comfort.

[0090] After setting up multiple first heat exchange branches 301 to increase the heat exchange rate, the cooling capacity can be increased, and the rate of air circulation through the first heat exchange branch 301 can be increased, which can improve the cooling effect of the air conditioner 100, make the indoor temperature more comfortable, and enhance the user experience.

[0091] By setting a plurality of first heat exchange branches 301, when one of the heat exchange branches fails, the use of other heat exchange branches is not affected, thereby improving the stability and reliability of the air conditioner 100, reducing the possibility of failure, and extending the service life of the air conditioner.

[0092] Continue to see Figure 4, the lengths of the multiple first heat exchange branches 301 are different. The first heat exchange branches 301 can be set to a corresponding length according to the amount of heat accumulation in the environment to achieve a better heat exchange effect. For example, the first heat exchange branch 301 is closer to the bottom surface, where the heat accumulation is small, and the position away from the bottom surface has more heat accumulation. The length of the first heat exchange branch 301 at the position away from the ground can be set longer than the length at the position close to the ground.

[0093] In this way, the heat exchange can be uniform and the cooling capacity at different locations can be similar, thus improving the user experience.

[0094] like Figure 5 As shown, Figure 5 This is a fourth structural diagram of an air conditioning heat exchanger provided in an embodiment of the present application. The lengths of multiple first heat exchange branches 301 are set to be the same. The lengths of multiple refrigerants entering different first heat exchange branches 301 are the same, which can make the flow rate and cooling effect of the refrigerants in different first heat exchange branches 301 basically the same, thereby improving the stability and uniformity of the entire system.

[0095] The same length of the plurality of first heat exchange branches 301 can also reduce the resistance and pressure loss of the system, thereby improving the air conditioner 100 (see Figure 1 )’s energy efficiency and energy-saving performance.

[0096] Continue to see Figure 5 The air conditioning heat exchanger 200 further includes a distributor 8. The distributor 8 has an inlet 801 and a plurality of diversion ports 802. The inlet 801 is connected to the refrigerant inlet 1. One diversion port 802 is connected to the first gas-liquid separator 5 through a first heat exchange branch 301.

[0097] The distributor 8 can distribute the refrigerant to different first heat exchange branches 301 according to system needs, and can also control the refrigerant flow in different first heat exchange branches 301. The distributor 8 improves the operating efficiency and energy-saving performance of the system by adjusting the diversion ratio.

[0098] Exemplarily, when the number of the first heat exchange branches 301 is two, the number of the diversion ports 802 is two; when the number of the first heat exchange branches 301 is three, the number of the diversion ports 802 is three; and so on, four or more diversion ports 802 may be provided.

[0099] like Figure 6 As shown, Figure 6 This is a fifth structural schematic diagram of an air-conditioning heat exchanger provided in an embodiment of the present application.

[0100] In some embodiments, the second heat exchange channel 4 includes multiple second heat exchange branches 401, and the multiple second heat exchange branches 401 are arranged in parallel, wherein one end of the second heat exchange branch 401 is connected to the refrigerant outlet 2, and the end of the second heat exchange branch 401 away from the refrigerant outlet 2 is connected to the first liquid outlet 502.

[0101] Continue to see Figure 6 , a number of second heat exchange branches 401 are provided, and two second heat exchange branches 401 are arranged in parallel, one end of each second heat exchange branch 401 is connected to the refrigerant inlet 1, and the other end of each second heat exchange branch 401 is connected to the second gas-liquid separator 7.

[0102] Two second heat exchange branches 401 are provided. When the refrigerant enters the second heat exchange channel 4, it is divided into two streams, one of which enters the second heat exchange branch 401A, and the other enters the second heat exchange branch 401B. When the refrigerant flow rate and flow velocity remain unchanged, the refrigerant enters different second heat exchange branches 401 for heat exchange, and heat exchange can be performed at two locations at the same time, thereby increasing the heat exchange efficiency.

[0103] For example, three or more first heat exchange branches 301 may be provided.

[0104] The refrigerant exchanges heat in different second heat exchange branches 401. According to the different settings of the second heat exchange branches 401, heat exchange can be performed at multiple locations at the same time, so that the cooling caused by the refrigerant absorbing heat is uniform, and the temperature of the wind blown out by the air-conditioning heat exchanger 200 is appropriate, thereby improving the user's comfort.

[0105] After setting up multiple second heat exchange branches 401 to increase the heat exchange rate, the cooling capacity can be increased, and the rate of air circulation through the second heat exchange branch 401 can be increased, which can improve the cooling effect of the air conditioner 100, make the indoor temperature more comfortable, and enhance the user experience.

[0106] By setting a plurality of second heat exchange branches 401, when one of the heat exchange branches fails, the use of other heat exchange branches is not affected, thereby improving the stability and reliability of the air conditioner 100, reducing the possibility of failure, and extending the service life of the air conditioner.

[0107] Combination Figure 3 and Figure 7 , Figure 7One of the structural schematic diagrams of a gas-liquid separator provided in an embodiment of the present application. The first gas-liquid separator 5 realizes the diversion and confluence of the refrigerant. The first gas-liquid separator 5 has two first inlet ports 501, a first liquid outlet port 502 and a first gas outlet port 503. Two first heat exchange branches 301 are provided, the first inlet ports 501 are the same as the number of the first heat exchange branches 301, the number of the second heat exchange branches 401 is one, and the number of the first liquid outlet ports 502 is one.

[0108] Combination Figure 6 and Figure 8 , Figure 8 The second structural schematic diagram of a gas-liquid separator provided in an embodiment of the present application. The first gas-liquid separator 5 realizes the diversion and confluence of the refrigerant. The first gas-liquid separator 5 has three first inlet ports 501, two first liquid outlet ports 502 and one first gas outlet port 503. Three first heat exchange branches 301 are provided, and the number of the first inlet ports 501 is the same as that of the first heat exchange branches 301, which is set to three. The number of the second heat exchange branches 401 is two, and the number of the first liquid outlet ports 502 is set to two.

[0109] The first liquid outlet 502 and the first inlet 501 effectively connect different devices together to achieve the transmission and flow of the refrigerant. At the same time, the pipeline can be maintained and replaced through the first liquid outlet 502 and the first inlet 501, reducing the time and cost of maintenance and replacement.

[0110] The first liquid outlet 502 and the first inlet 501 provide sealing and connection functions for the flow of the refrigerant, thereby ensuring the stability of the flow of the refrigerant.

[0111] Continue to see Figure 6 In some embodiments, the number of the second heat exchange branches 401 is less than the number of the first heat exchange branches 301 .

[0112] It should be noted that, when the inner diameter and length of the second heat exchange branch 401 and the first heat exchange branch 301 are the same, the number of the second heat exchange branch is less than the number of the first heat exchange branch 301 .

[0113] After the refrigerant passes through the first heat exchange path, a part of the refrigerant is converted into gas and discharged through the gas-liquid separator. The number of the second heat exchange branches 401 is less than the number of the first heat exchange branches 301, which can ensure that the pressure in the second heat exchange branches 401 is sufficient to allow the liquid refrigerant to flow through the second heat exchange branches 401. This ensures the stability of the system.

[0114] like Fig. 9 As shown, Fig. 9The sixth structural diagram of an air conditioning heat exchanger provided in an embodiment of the present application is shown in FIG. 1. In some embodiments, the refrigerant flow channel 203 further includes a second gas-liquid separator 7 , a third heat exchange channel 6 and a second exhaust channel 704 .

[0115] The second gas-liquid separator 7 has a second inlet end 701, a second liquid outlet end 702, and a second gas outlet end 703. The second inlet end 701 is connected to an end of the second heat exchange channel 4 away from the first liquid outlet end 502. The third heat exchange channel 6 is connected to the second liquid outlet end 702 and the refrigerant outlet 2. The second exhaust channel 704 is connected to the second gas outlet end 703 and the refrigerant outlet 2. The second exhaust channel 704 is used to guide the gas in the second gas-liquid separator 7 to the refrigerant outlet 2.

[0116] After the refrigerant passes through the second heat exchange channel 4, a part of the refrigerant absorbs heat and evaporates into gas, and no longer has heat exchange capacity. The liquid refrigerant and the gaseous refrigerant are separated at the second gas-liquid separator 7, and the liquid refrigerant flows into the third heat exchange channel 6 through the second liquid outlet 702, and continues to exchange heat at the third heat exchange channel 6. The gaseous refrigerant flows into the second exhaust channel 704 through the second gas outlet 703, and the second exhaust channel 704 discharges the gaseous refrigerant to the refrigerant outlet 2, thereby discharging the air conditioner heat exchanger 200.

[0117] This reduces the proportion of gaseous refrigerant in the third air-conditioning heat exchanger 200 to the total amount of refrigerant, increases the proportion of liquid refrigerant in the third air-conditioning heat exchanger 200 to the total amount of refrigerant, and thus improves the heat exchange efficiency of the refrigerant in the third air-conditioning heat exchanger 200.

[0118] At the same time, the refrigerant that is still in liquid state after passing through the first heat exchange channel 3 and the second heat exchange channel 4 can also undergo heat exchange when entering the heat exchange channel, so that the liquid refrigerant is converted into gaseous refrigerant, reducing the amount of liquid refrigerant flowing into the compressor 21, thereby reducing the risk of liquid hammer.

[0119] like Fig.10 As shown, Fig.10 The seventh structural diagram of a heat exchanger provided in an embodiment of the present application. In some embodiments, the third heat exchange channel 6 includes a plurality of third heat exchange branches 601, and the plurality of third heat exchange branches 601 are arranged in parallel. Among them, one end of the third heat exchange branch 601 is connected to the refrigerant outlet 2, and the end of the third heat exchange branch 601 away from the refrigerant outlet 2 is connected to the second liquid outlet 702.

[0120] Illustratively, only one third heat exchange branch 601 may be provided.

[0121] Exemplarily, the number of the third heat exchange branches 601 may be two or more.

[0122] After the third heat exchange branch 601 is provided to increase the heat exchange rate, the cooling capacity can be increased, thereby increasing the air flow rate through the third heat exchange branch 601, which can improve the air conditioner 100 (see Figure 1 )’s cooling effect makes the indoor temperature more comfortable and improves the user experience.

[0123] A plurality of third heat exchange branches 601 are provided, and when one of the third heat exchange branches 601 fails, the use of other third heat exchange branches 601 is not affected, so that the air conditioner 100 (see Figure 1 ) stability and reliability, reduce the possibility of failure and extend the service life of the air conditioner.

[0124] In some embodiments, the number of the third heat exchange branches 601 is less than the number of the second heat exchange branches 401 .

[0125] After the refrigerant passes through the second heat exchange path, a part of the refrigerant is converted into gas and discharged through the second gas-liquid separator 7. The number of the third heat exchange branches 601 is less than the number of the second heat exchange branches 401, which can ensure that the pressure in the third heat exchange branch 601 is sufficient to allow the liquid refrigerant to flow through the third heat exchange branch 601. Thus, the stability of the system is ensured.

[0126] Combination Fig.10 and 11 As shown, Fig.11 A schematic diagram of the structure of a gas collector provided in an embodiment of the present application. In some embodiments, a gas collector 9 is also included. The gas collector 9 has an exhaust port 901, a first gas collecting port 902, a second gas collecting port 903, and a third gas collecting port 904. Among them, the exhaust port 901 is connected to the refrigerant outlet 2, the first gas collecting port 902 is connected to the first gas outlet end 503; the second gas collecting port 903 is connected to the second gas outlet end 703; the third gas collecting port 904 is connected to an end of the third heat exchange channel 6 away from the second liquid outlet end 702.

[0127] Exemplarily, the gas collector 9 may also have a third gas collecting port 904, a fourth gas collecting port or more gas collecting ports. The number of gas collecting ports is related to the number of gas-liquid separators.

[0128] The gas collector 9 can collect gaseous refrigerant and discharge the gaseous refrigerant, and the gas collector 9 can allow liquid refrigerant to pass through.

[0129] The gas collector 9 collects and flows out the refrigerants in a plurality of pipelines, and has a collecting effect, thereby reducing the gaseous refrigerant from being retained in the heat exchange channel, thereby improving the heat exchange efficiency.

[0130] It should be noted that the connection and communication mentioned in this article can be direct connection and communication, or can be connection and communication through pipelines.

[0131] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the present application for which protection is claimed, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0132] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0133] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An air conditioning heat exchanger, comprising: Refrigerant imports; A refrigerant outlet, wherein a refrigerant flow channel is formed between the refrigerant inlet and the refrigerant outlet; Characterized in that the refrigerant flow channel comprises: a first heat exchange channel, one end of which is connected to the refrigerant inlet; A first gas-liquid separator, the first gas-liquid separator having a first inlet end, a first liquid outlet end and a first gas outlet end, the first inlet end being connected to an end of the first heat exchange channel away from the refrigerant inlet; a second heat exchange channel, the second heat exchange channel being in communication with the first liquid outlet and the refrigerant outlet; a first exhaust passage, the first exhaust passage being in communication with the first air outlet and the refrigerant outlet; Wherein, the first exhaust passage is used to guide the gas in the first gas-liquid separator to the refrigerant outlet.

2. The air conditioning heat exchanger according to claim 1, characterized in that: The first heat exchange channel comprises: A plurality of first heat exchange branches, wherein the plurality of first heat exchange branches are arranged in parallel; Among them, one end of the first heat exchange branch is connected to the refrigerant inlet, and one end of the first heat exchange branch away from the refrigerant inlet is connected to the inlet end.

3. The air conditioning heat exchanger according to claim 2, characterized in that: Also includes: a distributor having an inlet and a plurality of outlets for discharging refrigerant; Wherein, the inlet is connected to the refrigerant inlet, and one of the refrigerant exhaust outlets is connected to the inlet end through one of the first heat exchange branches.

4. The air conditioning heat exchanger according to claim 2, characterized in that: The second heat exchange channel comprises: A plurality of second heat exchange branches, wherein the plurality of second heat exchange branches are arranged in parallel; Among them, one end of the second heat exchange branch is connected to the refrigerant outlet, and one end of the second heat exchange branch away from the refrigerant outlet is connected to the first liquid outlet.

5. The air conditioning heat exchanger according to claim 4, characterized in that: The number of the second heat exchange branches is less than the number of the first heat exchange branches.

6. The air conditioning heat exchanger according to claim 4 or 5, characterized in that: The refrigerant flow channel also includes: a second gas-liquid separator, the second gas-liquid separator having a second inlet end, a second liquid outlet end and a second gas outlet end, the second inlet end being connected to an end of the second heat exchange channel away from the first liquid outlet end; a third heat exchange channel, the third heat exchange channel being in communication with the second liquid outlet and the refrigerant outlet; a second exhaust passage, the second exhaust passage being in communication with the second air outlet and the refrigerant outlet; Wherein, the second exhaust passage is used to guide the gas in the second gas-liquid separator to the refrigerant outlet.

7. The air conditioning heat exchanger according to claim 6, characterized in that: The third heat exchange channel comprises: A plurality of third heat exchange branches, wherein the plurality of third heat exchange branches are arranged in parallel; Among them, one end of the third heat exchange branch is connected to the refrigerant outlet, and one end of the third heat exchange branch away from the refrigerant outlet is connected to the second liquid outlet.

8. The air conditioning heat exchanger according to claim 7, characterized in that: The number of the third heat exchange branches is less than the number of the second heat exchange branches.

9. The air conditioning heat exchanger according to claim 6, characterized in that: Also includes: An air collector, the air collector having an exhaust port, a first air collecting port, a second air collecting port, and a third air collecting port; Among them, the exhaust port is connected to the refrigerant outlet; the first air collecting port is connected to an end of the first exhaust channel away from the first air outlet end; the second air collecting port is connected to an end of the second exhaust channel away from the second air outlet end; the third air collecting port is connected to an end of the third heat exchange channel away from the second liquid outlet end.

10. An air conditioner, characterized in that: include: An outdoor unit, the outdoor unit comprising a compressor, an outdoor heat exchanger and an outdoor fan; An indoor unit, wherein the indoor unit comprises an indoor heat exchanger and an indoor fan, wherein the compressor, the indoor heat exchanger and the outdoor heat exchanger are sequentially connected through pipelines to form a refrigerant circulation loop; Wherein, at least one of the indoor heat exchanger and the outdoor heat exchanger is an air-conditioning heat exchanger according to any one of claims 1-9.

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